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Strong mag. 6.5 earthquake - Fiji Islands Region on Sunday, 25 April 2021 at 22:28 (GMT) - information

Strong mag. 6.5 earthquake - South Pacific Ocean, Fiji, on 26 Apr 11:28 am (GMT +13)

Strong mag. 6.5 earthquake - South Pacific Ocean, Fiji, on 26 Apr 11:28 am (GMT +13) Strong mag. 6.5 earthquake - South Pacific Ocean, Fiji, on 26 Apr 11:28 am (GMT +13)

Strong magnitude 6.5 earthquake at 235 km depth

25 Apr 22:37 UTC: First to report: GFZ after 9 minutes.
25 Apr 22:38: Magnitude recalculated from 6.1 to 6.2. Hypocenter depth recalculated from 239.0 to 235.0 km (from 149 to 146 mi). Epicenter location corrected by 9.4 km (5.8 mi) towards W.
26 Apr 05:52: Magnitude recalculated from 6.2 to 6.5. Epicenter location corrected by 18 km (11 mi) towards WNW.

Earthquake details

Date & timeApr 25, 2021 22:28:01 UTC
Local time at epicenter26 Apr 11:28 am (GMT +13)
StatusConfirmed
Magnitude6.5
Depth235.0 km
Epicenter latitude / longitude21.63°S / 177.2°W (South Pacific Ocean, Fiji)
Antipode21.63°N / 2.8°E
Shaking intensityWeak shaking
Felt1 report
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoUnnamed 21.15°S/175.75°W (147 km / 91 mi)
Nearby towns and cities214 km (133 mi) WSW of Nukalofa (Nuku'alofa, Tonga) (pop: 22,400) | Show on map | Quakes nearby
214 km (133 mi) WSW of Nuku‘alofa (Tonga) (pop: 22,400) | Show on map | Quakes nearby
228 km (142 mi) WSW of Kolonga (Tonga) (pop: 1,100) | Show on map | Quakes nearby
235 km (146 mi) W of ‘Ohonua (Ohonua, Tonga) (pop: 1,240) | Show on map | Quakes nearby
358 km (223 mi) SW of Bangai (Pangai, Tonga) (pop: 1,740) | Show on map | Quakes nearby
472 km (293 mi) SW of Neiafu (Tonga) (pop: 4,320) | Show on map | Quakes nearby
215 km (133 mi) WSW of Amsterdam Island (pop: 75,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeLight Rain 25.1°C (77 F), humidity: 80%, wind: 6 m/s (11 kts) from ESE
Estimated seismic energy released3.5 x 1014 joules (98.6 gigawatt hours, equivalent to 84802 tons of TNT or 5.3 atomic bombs!) | about seismic energy
Show interactive Map
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
6.5235 kmFiji Islands RegionGFZ
6.4228 kmFIJI REGION, TongaEMSC
6.4232 kmTonga [Sea]INGV
6.1242 kmNear Nouméa, FijiRENASS
6.5240 kmFiji Islands RegionGeoAu
6.4246 km205 Km WSW of Haveluloto, TongaUSGS
6.5300 kmFiji Islands RegionBMKG

Seismograms

Seismic station: Funafuti, Tuvalu (FUNA/IU network) | Distance from quake: 1507 km / 937 mi | Show on map | Station Info
Seismic station Funafuti, Tuvalu: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (7)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Translate
Lautoka, Western (715.4 km NW of epicenter) [Map] / not felt
Lautoka, Western (715.4 km NW of epicenter) [Map] / not felt
Haveluloto, Kolomotu'a, Tongatapu (211.6 km ENE of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s (reported through our app)
Gualala, California / not felt : Heard an explosion then a louder one 5 seconds later  
TAURANGA (1895.6 km SSW of epicenter) [Map] / not felt
Mont Dore new caledonia (1675.6 km W of epicenter) [Map] / not felt (reported through our app)
Butte Montana / not felt

Aftershocks

[More info]

Recorded aftershocks, latest first (6 quakes)

Date and timeMag
Depth
LocationDetails
Sep 13, 2021 14:43
1 year 13 weeks ago
4.8

386 km
South Pacific Ocean, FijiMore
Aug 14, 2021 13:21
1 year 17 weeks ago
4.5

386 km
South Pacific Ocean, FijiMore
Aug 9, 2021 03:58
1 year 18 weeks ago
4.9

240 km
147 Km WSW of Haveluloto, TongaMore
Jul 26, 2021 19:19
1 year 20 weeks ago
4.8

33 km
South Pacific Ocean, 113 km W of Nukalofa, Nuku'alofa, TongatapuMore
May 17, 2021 00:31
1 year 30 weeks ago
5.1

257 km
South Pacific Ocean, 222 km SW of Nukalofa, Nuku'alofa, TongatapuMore
May 3, 2021 16:08
1 year 32 weeks ago
4.8

425 km
South Pacific Ocean, FijiMore

Earlier earthquakes in the same area

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